Draw out your image and tape off the shirt. Use light green as a base color. Make sure to leave the eye's, mouth, and chin area white.   Use light green to add value to the darker shadow areas. Continue useing light green to build up the shadow areas and begin adding small details and texture in and around the nose area with this color.   Useing dark green - transparent, , spray over most of light green areas, allowing some light green to show through.   Continue adding value and the shadow areas that you see in your reference image.   Use orange bright - transparent, to fill in the eyes and hands, spraying lighter and darker values to create value, shadows, and detail.   Continue adding value and the shadow areas that you see in your reference image.   --->   --->   Use brown blue (dark) - transparent, to fill in the pupils and lines under and around the eyeballs. Also use this color to lightly spray in areas of the mouth. nostral, and wrinkle detail.   Add forest green - transparent to fill in big shadow areas further on the lilly pad and within the head, to further define the frog's value and texture.   --->   Next add navy blue - transparent to shadows on the lilly pad and some to the detail within the head and body, to add depth and blend the image together. Also add to pupils and wrinkles around the eyes.   Fill in the background with black and add some black to the pupils and nostral.   Go back with forest green to touch up alittle.   --->   Next, add white to the throat and mouth area and some on the hand and head areas for highlights. Mist some white around eyeball and add a central highlight to the pupils to make the design pop.   Finished design.